Speeding and reversing gear



(No Model.)

P. HTREMPER. SPEEDING AND REVERSING GEAR.

No. 465,570. Patented Dec, 22, 1891 UNTTED STATES PATENT OFFICE.

FRANK E. TREMPER, OF SAN FRANCISCO, CALIFORNIA.

SPEEDlNG AND REVERSING GEAR.

SPECIFICATION forming part of Letters Patent No. 465,570, dated December22, 1891.

Application filed May 25, 1391.

To all whom it may concern.-

Be it known that 1, FRANK E. TREMPER, a citizen of the United States,residing in the city and county of San Francisco, State of California,have invented an Improvement in Speeding and Reversing Gears; and Ihereby declare the following to be a full, clear, and exact descriptionof the same.

My invention relates to that class of mechanism for reversing themovement of an engine usually termed speeding and reversing gear.

It consists in the novel construction and arrangement of partshereinafter fully described, and specifically pointed out in the claims.

The object of my invention is to provide a simple and effective gear ofthis class which is especially adapted for small-boat engines, in whichthe driving'shaft of the engine may be placed transversely of the boatand may communicate power to the screw-shaft, which is locatedlongitudinally thereof.

Referring to the accompanying drawings for a more complete explanationof my invention, Figure 1 is an elevation of my device. Fig. 2 is a Viewshowing one of the intermediate wheels on the face of the fiy-wheel.Fig. 3 is a view showing a pawl and rack for controlling the levercarrying the intermediate wheels.

A represents, generally, the engine, B the engineshaft, and C afly-wheel on each end of said shaft.

D is the screw-shaft, to which the power of the engine shaft is to betransmitted, and it will be seen that these two shafts are in lines atright angles to each other. Upon the driven shaft D isawheel E,preferablya friction-wheel. The inner faces of the fly-wheels C are madevery broad to provide engaging surfaces, preferably frictional.

F is a swinging lever, having arms extending to each side. At theextremities of these arms are suitably mounted the intermediate wheelsl-l, one for each arm. The position of these wheels is such that theyare adapted to fit alternately between the friction-surfaces of thewheelE and the fly-wheels C, and when one of these intermediate wheelsis thrown into actionthe other is thrown out Serial No. 394,055. (Nomodel.)

of action, and vice versa. A spring I may be made to hold one of thesewheels normally in active position. Other means may be en1- ployed formounting and carrying these intermediate wheels into and out of action,and

in Fig. 3 I have shown the leveras controlled by a rack and pawl.

The operation of this mechanism is as follows: By the movement of thelever in one direction one of the intermediate wheels H is thrown intoengagement and the power of the fly-wheel on that side is transmittedthrough it to the friction-wheel E and thence to the driven shaft. IVhenthelever is movedin the other direction, the first intermediate wheel israised up out off-engagement and the other interm edia te wheel isthrown into action, whereby the powerof the fly-wheel on the other sideis transmitted to the friction-wheel E to rotate it and the driven shaftin the opposite direction. Thus the driving-shaft of the engine may beplaced transversely in a boat and may be easily made to drive in eitherdirection the screw-shaft of the boat. By making the friction-wheel Eone-half the diameter of the flywheel I can give double speed to thepropeller-shaft, to which wheel E is attached. The intermediate wheelsH, which are thrown into and out of action, need not be of any givendiameter except as will best fit and conform to the space between thefly-wheels and the friction-wheel E. The fly-wheels can be made ofmetal, and also the wheel E, or of other materials, and the intermediatewheels H may likewise be made of metal, orit maybe found of advantage toface them with rubber, paper, leather, &c.

Havingthus described my invention, what I claim as new, and desire tosecure by Letters 9c Patent, is-

1. A speeding and reversing gear consisting of a driving-shaft and adriven shaft in lines at right angles to each other, fly-wheels, one oneach end of the driving-shaft, a wheel on the 5 driven shaft, andintermediate wheels, one on each side, adapted to be alternately throwninto thespace between the sides of the fiywheels and the wheel on thedriven shaft to form contact therewith, substantially as hereindescribed.

2. A speeding and reversing gear consisting of a driving and a drivenshaft in lines at tact therewith, substantially as herein de rightangles to each other, a flywheel on scribed. I 10 each end of thedriving-shaft, a wheel on the In witness whereof I have hereunto set mydriven shaft, a lever with arms, and interhand.

5 mediate wheels, one at the end of each arm FRANK E. TREMPER.

and adapted to be alternately thrown into the Witnesses: space betweenthe sides of the fly-wheel and JAMES L. KING,

the wheel on the driven shaft and form eon- N. KEMPSTON.

